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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-17 16:26:17 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-12-17 16:26:17 (GMT) |
commit | 3c2e81ef344a90bb0a39d84af6878b4aeff568a2 (patch) | |
tree | bd8c8b23466174899d2fe4d35af6e1e838edb068 /drivers/gpu/drm/exynos/exynos_drm_iommu.h | |
parent | 221392c3ad0432e39fd74a349364f66cb0ed78f6 (diff) | |
parent | 55bde6b1442fed8af67b92d21acce67db454c9f9 (diff) | |
download | linux-3c2e81ef344a90bb0a39d84af6878b4aeff568a2.tar.xz |
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull DRM updates from Dave Airlie:
"This is the one and only next pull for 3.8, we had a regression we
found last week, so I was waiting for that to resolve itself, and I
ended up with some Intel fixes on top as well.
Highlights:
- new driver: nvidia tegra 20/30/hdmi support
- radeon: add support for previously unused DMA engines, more HDMI
regs, eviction speeds ups and fixes
- i915: HSW support enable, agp removal on GEN6, seqno wrapping
- exynos: IPP subsystem support (image post proc), HDMI
- nouveau: display class reworking, nv20->40 z compression
- ttm: start of locking fixes, rcu usage for lookups,
- core: documentation updates, docbook integration, monotonic clock
usage, move from connector to object properties"
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (590 commits)
drm/exynos: add gsc ipp driver
drm/exynos: add rotator ipp driver
drm/exynos: add fimc ipp driver
drm/exynos: add iommu support for ipp
drm/exynos: add ipp subsystem
drm/exynos: support device tree for fimd
radeon: fix regression with eviction since evict caching changes
drm/radeon: add more pedantic checks in the CP DMA checker
drm/radeon: bump version for CS ioctl support for async DMA
drm/radeon: enable the async DMA rings in the CS ioctl
drm/radeon: add VM CS parser support for async DMA on cayman/TN/SI
drm/radeon/kms: add evergreen/cayman CS parser for async DMA (v2)
drm/radeon/kms: add 6xx/7xx CS parser for async DMA (v2)
drm/radeon: fix htile buffer size computation for command stream checker
drm/radeon: fix fence locking in the pageflip callback
drm/radeon: make indirect register access concurrency-safe
drm/radeon: add W|RREG32_IDX for MM_INDEX|DATA based mmio accesss
drm/exynos: support extended screen coordinate of fimd
drm/exynos: fix x, y coordinates for right bottom pixel
drm/exynos: fix fb offset calculation for plane
...
Diffstat (limited to 'drivers/gpu/drm/exynos/exynos_drm_iommu.h')
-rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_iommu.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_iommu.h b/drivers/gpu/drm/exynos/exynos_drm_iommu.h new file mode 100644 index 0000000..18a0ca1 --- /dev/null +++ b/drivers/gpu/drm/exynos/exynos_drm_iommu.h @@ -0,0 +1,85 @@ +/* exynos_drm_iommu.h + * + * Copyright (c) 2012 Samsung Electronics Co., Ltd. + * Authoer: Inki Dae <inki.dae@samsung.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + */ + +#ifndef _EXYNOS_DRM_IOMMU_H_ +#define _EXYNOS_DRM_IOMMU_H_ + +#define EXYNOS_DEV_ADDR_START 0x20000000 +#define EXYNOS_DEV_ADDR_SIZE 0x40000000 +#define EXYNOS_DEV_ADDR_ORDER 0x4 + +#ifdef CONFIG_DRM_EXYNOS_IOMMU + +int drm_create_iommu_mapping(struct drm_device *drm_dev); + +void drm_release_iommu_mapping(struct drm_device *drm_dev); + +int drm_iommu_attach_device(struct drm_device *drm_dev, + struct device *subdrv_dev); + +void drm_iommu_detach_device(struct drm_device *dev_dev, + struct device *subdrv_dev); + +static inline bool is_drm_iommu_supported(struct drm_device *drm_dev) +{ +#ifdef CONFIG_ARM_DMA_USE_IOMMU + struct device *dev = drm_dev->dev; + + return dev->archdata.mapping ? true : false; +#else + return false; +#endif +} + +#else + +struct dma_iommu_mapping; +static inline int drm_create_iommu_mapping(struct drm_device *drm_dev) +{ + return 0; +} + +static inline void drm_release_iommu_mapping(struct drm_device *drm_dev) +{ +} + +static inline int drm_iommu_attach_device(struct drm_device *drm_dev, + struct device *subdrv_dev) +{ + return 0; +} + +static inline void drm_iommu_detach_device(struct drm_device *drm_dev, + struct device *subdrv_dev) +{ +} + +static inline bool is_drm_iommu_supported(struct drm_device *drm_dev) +{ + return false; +} + +#endif +#endif |